NOTES PAYABLE (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

A summary of notes payable follows:

(In millions)	September 30, 2018			December 31, 2017
2.40% senior notes due March 2020		$	549		$	548
4.00% senior notes due February 2022		348			348
3.625% senior notes due June 2023		698			697
3.625% senior notes due November 2024		746			745
3.25% senior notes due March 2025		447			446
2.875% senior notes due October 2026		297			297
6.90% senior notes due December 2039		220			220
6.45% senior notes due August 2040		254			254
4.00% senior notes due October 2046		394			394
Yen-denominated senior notes and subordinated debentures:
.932% senior notes due January 2027 (principal amount 60.0 billion yen)		525			528
2.108% subordinated debentures due October 2047 (principal amount 60.0 billion yen)		523			526
Yen-denominated loans:
Variable interest rate loan due September 2021 (.32% in 2018 and 2017, principal amount 5.0 billion yen)		44			44
Variable interest rate loan due September 2023 (.47% in 2018 and 2017, principal amount 25.0 billion yen)		219			220
Capitalized lease obligations payable through 2025		15			22
Total notes payable		$	5,279		$	5,289

Amounts in the table above are reported net of debt issuance costs and issuance premiums or discounts, if applicable, that are being amortized over the life of the notes.

Schedule of Line of Credit Facilities

A summary of the Company's lines of credit as of September 30, 2018 follows:

Borrower	Type	Term	Expiration Date	Capacity	Amount Outstanding	Interest Rate on Borrowed Amount	Maturity Period	Commitment Fee	Business Purpose
Aflac Incorporated and Aflac	uncommitted bilateral	364 days	November 30, 2018	$100 million	$0 million	The rate quoted by the bank and agreed upon at the time of borrowing	Up to 3 months	None	General corporate purposes
Aflac Incorporated	unsecured revolving	3 years	March 31, 2019, or the date commitments are terminated pursuant to an event of default	100.0 billion yen	0.0 billion yen	A rate per annum equal to (a) Tokyo interbank market rate (TIBOR) plus, the alternative applicable TIBOR margin during the availability period from the closing date to the commitment termination date or (b) the TIBOR rate offered by the agent to major banks in yen for the applicable period plus, the applicable alternative TIBOR margin during the term out period	No later than March 31, 2019	.30% to .50%, depending on the Parent Company's debt ratings as of the date of determination	General corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated and Aflac	unsecured revolving	5 years	April 4, 2023, or the date commitments are terminated pursuant to an event of default(1)	55.0 billion yen, or the equivalent amount in U.S. dollars	0.0 billion yen	A rate per annum equal to, at the Company's option, either, (a) London Interbank Offered Rate (LIBOR) adjusted for certain costs or (b) a base rate determined by reference to the highest of (1) the federal funds rate plus 1/2 of 1%, (2) the rate of interest for such day announced by Mizuho Bank, Ltd. as its prime rate, or (3) the eurocurrency rate for an interest period of one month plus 1.00%, in each case plus an applicable margin	No later than April 4, 2023	.085% to .225%, depending on the Parent Company's debt ratings as of the date of determination	General corporate purposes, including a capital contingency plan for the operations of the Parent Company
Aflac Incorporated and Aflac	uncommitted bilateral	None specified	None specified	$50 million	$0 million	A rate per annum equal to, at the Parent Company's option, either (a) a eurocurrency rate determined by reference to the agent's LIBOR for the interest period relevant to such borrowing or (b) the base rate determined by reference to the greater of (i) the prime rate as determined by the agent, and (ii) the sum of 0.50% and the federal funds rate for such day	Up to 3 months	None	General corporate purposes
Aflac(2)	uncommitted revolving	364 days	November 30, 2018	$250 million	$0 million	USD three-month LIBOR plus 75 basis points per annum	3 months	None	General corporate purposes
Aflac Incorporated(2)	uncommitted revolving	364 days	April 2, 2019	37.5 billion yen	0.0 billion yen	Three-month TIBOR plus 80 basis points per annum	3 months	None	General corporate purposes

⁽¹⁾ Effective April 4, 2018, the prior expiration date of September 18, 2020 was extended to April 4, 2023.

⁽²⁾ Intercompany credit agreement